couche d\'accommodation

English translation: cushion coat

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
French term or phrase:couche d\\\'accommodation
English translation:cushion coat
Entered by: claude-andrew

09:12 Mar 4, 2016
French to English translations [PRO]
Tech/Engineering - Metallurgy / Casting / Laser cladding
French term or phrase: couche d\'accommodation
Principe du rechargement laser (laser cladding)

Intérêts :
Système multi directionnel et orientable
Meilleur état de surface que PTA, électrode limitant l’usinage post-rechargement
Réduction des déformations pièces
Grande maitrise de la dilution des dépôts : garantie de la qualité des dépôts, simplification des **couches d’accommodation** (beurrage)
Insensibilité à la conduction électrique : application à l’aluminium

Having failed to come up with anything else, I'm provisionally using "accommodation layer"
claude-andrew
France
Local time: 21:29
cushion coat
Explanation:
Research findings only, so fairly low confidence level.

From Principles of Welding: Processes, Physics, Chemistry, and Metallurgy By Robert W. Messler, Jr.

Another place where dilution must be taken into account is in weld
overlaying, also known as cladding, surfacing, or hardfacing, to provide protection against corrosion or wear. Too much dilution by the base metal can severely degrade the desired properties of the overlay. Multiple layers of overlay (to get past the dilution), or an intermediate, buttering or “cushion coat” (to block dilution) will help.5

5 Cushion coats are also employed in hardfacing to provide some give or strain accommodation under hard, wear-resistant coatings that must also tolerate impact. A good example is the use of
a softer, impact-resistant cushion coat under a wear-resistant coating on swing hammers used for crushing rock.
https://books.google.co.uk/books?id=Sla2E145pbQC&pg=PA362&lp...

From: Practical Welding Technology By Rudy Mohler

In this instance, it is accomplished easiest by what is commonly called "buttering", which consists of initially preheating and covering all weld joint surfaces with a layer of beads, as shown in Fig. 6-15. The buttering filler metal should be a ductile type, such as nickel-iron or the low-hydrogen E7018 type. The softer layer acts somewhat as a cushion: an expansion and contraction area. The best deposition sequence is to deposit a bead on one bevel and then one on the other alternating the direction of travel. Also, two buttering layers are best.
https://books.google.be/books?id=tsFoJjMU4dgC&pg=PA88&lpg=PA...
Selected response from:

Alison MacG
United Kingdom
Local time: 20:29
Grading comment
Thanks Alison!
4 KudoZ points were awarded for this answer



Summary of answers provided
2adjustment layer
B D Finch
2cushion coat
Alison MacG
Summary of reference entries provided
buttering and coating
Nikki Scott-Despaigne

Discussion entries: 3





  

Answers


1 hr   confidence: Answerer confidence 2/5Answerer confidence 2/5
adjustment layer


Explanation:
www.faqs.org/patents/class/000475091
The device includes an active layer and at least a pair of cladding layers. ...... Lattice Matched Cladding Layer - A semiconductor laser diode with a high indium content is ...... The LED epitaxial-Chip includes a substrate, a butter layer formed on the ...... is formed on the surface of the second refractive index adjustment layer.

www.patentsencyclopedia.com/inventor/chung-en-zah-holmdel-u... Methods of fabricating metal contact structures for laser diodes ... adjustment layer, the lower cladding region, t

B D Finch
France
Local time: 21:29
Native speaker of: English
PRO pts in category: 32
Notes to answerer
Asker: Well done BD! Thanks

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2 hrs   confidence: Answerer confidence 2/5Answerer confidence 2/5
cushion coat


Explanation:
Research findings only, so fairly low confidence level.

From Principles of Welding: Processes, Physics, Chemistry, and Metallurgy By Robert W. Messler, Jr.

Another place where dilution must be taken into account is in weld
overlaying, also known as cladding, surfacing, or hardfacing, to provide protection against corrosion or wear. Too much dilution by the base metal can severely degrade the desired properties of the overlay. Multiple layers of overlay (to get past the dilution), or an intermediate, buttering or “cushion coat” (to block dilution) will help.5

5 Cushion coats are also employed in hardfacing to provide some give or strain accommodation under hard, wear-resistant coatings that must also tolerate impact. A good example is the use of
a softer, impact-resistant cushion coat under a wear-resistant coating on swing hammers used for crushing rock.
https://books.google.co.uk/books?id=Sla2E145pbQC&pg=PA362&lp...

From: Practical Welding Technology By Rudy Mohler

In this instance, it is accomplished easiest by what is commonly called "buttering", which consists of initially preheating and covering all weld joint surfaces with a layer of beads, as shown in Fig. 6-15. The buttering filler metal should be a ductile type, such as nickel-iron or the low-hydrogen E7018 type. The softer layer acts somewhat as a cushion: an expansion and contraction area. The best deposition sequence is to deposit a bead on one bevel and then one on the other alternating the direction of travel. Also, two buttering layers are best.
https://books.google.be/books?id=tsFoJjMU4dgC&pg=PA88&lpg=PA...


Alison MacG
United Kingdom
Local time: 20:29
Works in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 12
Grading comment
Thanks Alison!
Notes to answerer
Asker: Better still Alison, thanks. This is exactly the right field of welding and cladding

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Reference comments


59 mins
Reference: buttering and coating

Reference information:
http://www.blueshield.ca/en/docs/pdf/techInfo/DataBook/A-178...

buttering. A form of surfacing in which one or
more layers of weld metal are deposited on the
groove face of one member (for example, a high
alloy weld deposit on steel base metal which is
to be welded to a dissimilar base metal). The
buttering provides a suitable transition weld
deposit for subsequent completion of the butt
weld.

coating. A relatively thin layer (> 1 mm (0.04 in.)) of
material applied by surfacing for the purpose of
corrosion prevention, resistance to high
temperature scaling, wear resistance, lubrication, or
other purposes. See cladding, surfacing, and
hardfacing


"Cotaing" may be more accurate than "layer" in context?

Nikki Scott-Despaigne
Native speaker of: Native in EnglishEnglish
PRO pts in category: 4
Note to reference poster
Asker: Yes - following your GDT ref, I searched weld buttering, it's the correct term. There's even a Youtube. Thanks!

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